Double-Ridged Waveguide Horn Antennas

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1 Models 3112, 3106B, 3119, 3115, 3117, 3116C Double-Ridged Waveguide Horn Antennas User Manual

2 ETS-Lindgren Inc. Although the information in this document has been carefully reviewed and is believed to be reliable, ETS-Lindgren does not assume any liability arising out of the application or use of any product or circuit described herein; nor does it convey any license under its patent rights nor the rights of others. All trademarks are the property of their respective owners. Copyright by ETS-Lindgren Inc. All Rights Reserved. No part of this document may be copied by any means without written permission from ETS-Lindgren Inc. Trademarks used in this document: The ETS-Lindgren logo is a trademark of ETS-Lindgren Inc. Revision Record MANUAL, DOUBLE-RIDGED WAVEGUIDE HRN FAM Part #399318, Rev. D Revision Description Date A Initial Release October, 2010 B C D Update 3116B to 3116C. Updates to all sections. Updated 7-TR boom information; updated mounting information; added 3106B on 7-TR mounting instructions Added optional 7/16 DIN connector to Model 3119 May, 2012 August, 2013 March, 2014 ii

3 Table of Contents Notes, Cautions, and Warnings... v 1.0 Introduction... 7 Double-Ridged Waveguide Horn Antennas... 7 Model Model 3106B... 7 Model Model Model Model 3116C... 9 Optional Items... 9 Tripod Options TR Boom Options Model 3112 Positioning System ETS-Lindgren Product Information Bulletin Maintenance Annual Calibration Replacement and Optional Parts Service Procedures Specifications Electrical Specifications Model Model 3106B Model Model Model Model 3116C Physical Specifications Model Model 3106B Model Model Model Model 3116C Mounting Instructions iii

4 4-TR Mounting Instructions Included Mounting Hardware Attach Mounting Bracket to Antenna Attach Stinger Mount (Models 3117 and 3116C Only) Mount Antenna and Bracket to 4-TR TR and Mast Mounting Options x2 Boom Mounting Options Mounting a Model 3112 to the Optional Positioning System Rear Plate Mounting Pattern Connecting the Optional Positioning System Input Locations Air Polarization Option Mounting a Model 3106 Series Antenna to a 7-TR Typical Data Model Model 3106B Model Model Model Model 3116C Appendix A: Warranty Appendix B: Typical Measured Radiated Patterns Model 3106B Model Model Model iv

5 Notes, Cautions, and Warnings Note: Denotes helpful information intended to provide tips for better use of the product. Caution: Denotes a hazard. Failure to follow instructions could result in minor personal injury and/or property damage. Included text gives proper procedures. Warning: Denotes a hazard. Failure to follow instructions could result in SEVERE personal injury and/or property damage. Included text gives proper procedures. See the ETS-Lindgren Product Information Bulletin for safety, regulatory, and other product marking information. v

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1.0 Introduction The ETS-Lindgren family of Double-Ridged Waveguide Horn Antennas consists of linearly polarized broadband antennas ranging in frequency from 100 MHz to 40 GHz.

However, they can also be used for antenna gain, pattern measurement, surveillance, automotive, and military EMC immunity applications.

7 1.0 Introduction The ETS-Lindgren family of Double-Ridged Waveguide Horn Antennas consists of linearly polarized broadband antennas ranging in frequency from 100 MHz to 40 GHz. These antennas were designed and built specifically from EMI measurements and specifications compliance testing. However, they can also be used for antenna gain, pattern measurement, surveillance, automotive, and military EMC immunity applications. Double-Ridged Waveguide Horn Antennas MODEL 3112 The Model 3112 Double-Ridged Waveguide Horn is a linearly polarized antenna covering the frequency range of 100 MHz to 1 GHz. The Model 3112 is especially effective for generating high electromagnetic fields with relatively low power input. The antenna is also useful for receiving low-level signals where high gain characteristics are needed. MODEL 3106B The Model 3106B Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering a frequency range of 200 MHz to 2.5 GHz. It is precision-machined from aluminum, making it lightweight and durable. Two brackets are attached to the sides of the antenna so it can be polarized either horizontal or vertically. The Model 3106B has high gain and excellent VSWR characteristics over the entire frequency range (see Appendix B on page 51 for data charts). It is especially effective for generating high electromagnetic field with relatively low power input. The antenna is also useful for receiving low level signals where high gain characteristics are needed. Introduction 7

MODEL 3119 The Model 3119 Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range of 400 MHz to 6 GHz.

MODEL 3115 The Model 3115 Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range of 750 MHz to 18 GHz.

In addition, the 3115 is useful for antenna pattern measurement as a source antenna.

8 MODEL 3119 The Model 3119 Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range of 400 MHz to 6 GHz. The Model 3119 is ideally suited for immunity over 1 GHz and as a reference antenna for wireless testing. In addition, the 3119 is useful for antenna pattern measurement as a source antenna. MODEL 3115 The Model 3115 Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range of 750 MHz to 18 GHz. The Model 3115 is ideally suited for IEC and MIL-STD 461E immunity tests as well as ANSI C634 and EN emissions testing. In addition, the 3115 is useful for antenna pattern measurement as a source antenna. MODEL 3117 The Model 3117 Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the 1 GHZ to 18 GHz frequency range. A single well-defined main lobe radiation pattern over the entire frequency range provides excellent illumination of the Equipment Under Test (EUT). The Model 3117 is ideally suited for IEC and MIL-STD 661/462 immunity tests as well as ANSI C634 and EN emissions tests. The 3117 includes a stinger for flexible mounting options. 8 Introduction

MODEL 3116C The Model 3116C Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range 10 GHz to 40 GHz.

92 mm) female connector is mounted on the base block of the antenna for increased performance at high frequencies.

9 MODEL 3116C The Model 3116C Double-Ridged Waveguide Horn is a linearly polarized broadband antenna covering the frequency range 10 GHz to 40 GHz. It is designed and built specifically for emissions and susceptibility testing. The Model 3116C is precision-machined from aluminum. A 50 Ω Type K (2.92 mm) female connector is mounted on the base block of the antenna for increased performance at high frequencies. For flexible mounting options, the 3116C includes a bracket that accepts a 1/4 20 thread screw and a rear stinger-style mount. Optional Items TRIPOD OPTIONS ETS-Lindgren offers the following non-metallic, non-reflective tripods for use at both indoor and outdoor EMC test sites. 4-TR Tripod Constructed of linen phenolic and delrin, designed with an adjustable center post for precise height adjustments. Maximum Height: 2.0 m (80.0 in) Minimum Height: 94 cm (37.0 in) Maximum Load: 11.8 kg (26.0 lb) Introduction 9

10 7-TR Tripod Constructed of PVC and fiberglass components, providing increased stability for physically large antennas. The unique design allows for quick assembly, disassembly, and convenient storage. Allows several different configurations, including options for manual or pneumatic polarization. Quick height adjustment and locking wheels provide ease of use during testing. Maximum Height: 2.17 m (85.8 in) Minimum Height: 0.8 m (31.8 in) Maximum Load: 13.5 kg (30 lb) 7-TR BOOM OPTIONS Boom Type Straight (109042) Function For general antenna mounting on a 7-TR. Offset (108983) Stinger Only (118947) For general antenna mounting on a 7-TR with pneumatic or manual polarization. Can also be used to mount stinger-type antennas. For stinger mount antennas only. Centerline Rotation (108507) For Model 3106 Series antennas only; when changing polarization, maintains centerline rotation. For mounting information, see Mounting a Model 3106 Series Antenna to a 7-TR on page Introduction

11 MODEL 3112 POSITIONING SYSTEM The Model 3112 features an option for a fixed height pneumatic-assisted polarization positioning system. The position system is ideal when using the Model 3112 for immunity testing. Power Supply: Pneumatic Interface: Weight: Maximum Height: Maximum Load: 160 ma 120 VAC Optional 220 VAC available PSI kg lb cm 140 in cm in ETS-Lindgren Product Information Bulletin See the ETS-Lindgren Product Information Bulletin included with your shipment for the following: Warranty information Safety, regulatory, and other product marking information Steps to receive your shipment Steps to return a component for service ETS Lindgren calibration service ETS Lindgren contact information Introduction 11

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2.0 Maintenance Before performing any maintenance, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment.

13 2.0 Maintenance Before performing any maintenance, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment. WARRANTY Maintenance of a Double-Ridged Waveguide Horn Antenna is limited to external components such as cables or connectors. If you have any questions concerning maintenance, contact ETS Lindgren Customer Service. Annual Calibration See the Product Information Bulletin included with your shipment for information on ETS-Lindgren calibration services. Replacement and Optional Parts ETS-Lindgren may substitute a similar part or new part number with the same functionality for another part/part number. Contact ETS-Lindgren for questions about part numbers and ordering parts. Following are the part numbers for ordering replacement or optional parts for the Double-Ridged Waveguide Horn Antennas. Part Description Part Number Model 3112 Pneumatic Assisted Pedestal TR Tripod 4-TR 4-TR Mounting Bracket, TR Tripod Options 7-TR Tripod, No Polarization 7-TR 7-TR Tripod, Pneumatic Polarization 7-TR/POL 7-TR Tripod, Manual Polarization 7-TR/POL-M Maintenance 13

14 Part Description Part Number 7-TR Boom Assembly Options Boom Assembly, Antenna Mounting, Straight Standard for general antenna mounting on 7-TR Boom Assembly, Antenna Mounting, Offset Standard for general antenna mounting on 7-TR/POL and 7-TR/POL-M; can also be used to mount stinger-type antennas Boom,Stinger Only For stinger-mount antennas only Boom Assembly, Antenna Mounting, 3106 For mounting Model 3106 antennas only Service Procedures For the steps to return a system or system component to ETS-Lindgren for service, see the Product Information Bulletin included with your shipment. 14 Maintenance

15 3.0 Specifications Electrical Specifications MODEL 3112 Frequency Range 100 MHz 1 GHz VSWR Ratio (Average) < 1.6:1 Maximum Continuous Power Peak Power Impedance (Nominal) Connector Front-to-Back Ratio Cross Polarization 800 W 1.5 kw (Type N, female connector) 2.5 kw CW (EIA 1 5/8-in flange connector) 50 Ω Type N, female EIA 1 5/8-in flange 20 db 20 db minimum MODEL 3106B Frequency Range 200 MHz 2.5 GHz VSWR Ratio (Average) <1.6:1 Maximum Continuous Power Peak Power Impedance (Nominal) Connector Front-to-Back Ratio Cross Polarization 800 W 1600 W 50 Ω Type N, female 20 db 20 db minimum Specifications 15

16 MODEL 3119 Frequency Range 400 MHz 6 GHz VSWR Ratio (Average) 3.5:1 Maximum Continuous Power Peak Power Impedance (Nominal) 800 W 2500 W 50 Ω Connector Type N, female (standard connector) 7/16 DIN (optional connector; must be specified at time of purchase) Front-to-Back Ratio Cross Polarization 20 db 20 db minimum MODEL 3115 Frequency Range 750 MHz 18 GHz VSWR Ratio (Average) 5:1 Maximum Continuous Power Peak Power Impedance (Nominal) Connector Front-to-Back Ratio Cross Polarization 750 W 500 W 50 Ω Type N, female 20 db 20 db minimum MODEL 3117 Frequency Range VSWR Ratio (Average) Maximum Continuous Power Peak Power Impedance (Nominal) Connector Front-to-Back Ratio Cross Polarization 1 GHz 18 GHz 3.5:1 max <2:1 above 1.5 GHz 300 W 400 W 50 Ω Type N, female >6.42 db at 1 GHz >12.08 db at 2 GHz >20 db at 3 GHz 18 GHz 20 db at 3 GHz 18 GHz 16 Specifications

17 MODEL 3116C Frequency Range VSWR Ratio (Average) Maximum Continuous Power Peak Power Impedance (Nominal) Connector Front-to-Back Ratio Cross Polarization 10 GHz 40 GHz 2.5:1 max GHz GHz 200 W 50 Ω Type K, female 2.92 mm 20 db 20 db minimum Physical Specifications MODEL 3112 Width Depth Height Approximate Weight cm (80 in) 182 cm (71.65 in) cm (56 in) 86.1 kg ( lb) MODEL 3106B Width Depth Height Approximate Weight 93.3 cm (36.7 in) 97.8 cm (38.5 in) 72.9 cm (28.7 in) 11.8 kg (26.01 lb) MODEL 3119 Width Depth Height Approximate Weight cm (19.23 in) 40 cm (15.74 in) cm (12.35 in) 7.4 kg (16.3 lb) Specifications 17

18 MODEL 3115 Width Depth Height Approximate Weight 24.4 cm (9.6 in) 27.9 cm (11 in) 15.9 cm (6.2 in) 1.8 kg (4 lb) MODEL 3117 Width Depth Height Approximate Weight 17.5 cm (6.9 in) 17.5 cm cm mount (6.9 in in mount) 15.5 cm (6.1 in) 1.13 kg (2.5 lb) MODEL 3116C Width Depth Height Approximate Weight With Stinger cm in 6.35 cm 2.5 in kg 0.74 lb 10.8 cm 4.25 in With Bracket cm 5.13 in 8.9 cm 3.5 in kg 0.44 lb 18 Specifications

19 4.0 Mounting Instructions Before connecting any components or operating the Double-Ridged Waveguide Horn Antennas, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment. The Double-Ridged Waveguide Horn Antennas are precision instruments. Handle with care. Make sure that no part of the antenna is in contact with the tripod or tower. 4-TR Mounting Instructions Due to the size of the Model 3112, 3119, and 3106B Double-Ridged Waveguide Horn Antennas, do not mount them onto a 4-TR. Failure to provide continuous support of the antenna when attaching or removing the mounting bracket or thumbscrews may result in damage. INCLUDED MOUNTING HARDWARE All Double-Ridged Waveguide Horn Antennas (except the 3112, 3119, and 3106B) mount directly to a 4-TR Tripod using the included mounting hardware; no additional hardware is required. The Model 3117 Model and 3116C include a stinger mount for centerline rotation measurements; see page 21 for more information. All Double-Ridged Waveguide Horn Antennas ship with the following mounting hardware: Mounting bracket drilled to accept ETS-Lindgren or other tripod mount with 1/4 20 threads. Thumbscrews (2) for attaching the antenna to the mounting bracket. Mounting Instructions 19

ATTACH MOUNTING BRACKET TO ANTENNA The Model 3117 Model and 3116C include a stinger mount for centerline rotation measurements; see page 21 for more information.

20 ATTACH MOUNTING BRACKET TO ANTENNA The Model 3117 Model and 3116C include a stinger mount for centerline rotation measurements; see page 21 for more information. The following illustration represents a typical assembly of the mounting bracket to an antenna. The Model 3116C is shown; however, the steps are similar for each of the Double-Ridged Waveguide Horn Antennas. 1. Hold the antenna with the connector pointing to the floor and align the holes on the back of the antenna with the ones on the bracket provided. 2. Select set of holes for horizontal or vertical polarization as desired. 3. Insert both thumbscrews and tighten. 20 Mounting Instructions

ATTACH STINGER MOUNT (MODELS 3117 AND 3116C ONLY) The Model 3117 Model and 3116C include a stinger mount for centerline rotation measurements. 1.

21 ATTACH STINGER MOUNT (MODELS 3117 AND 3116C ONLY) The Model 3117 Model and 3116C include a stinger mount for centerline rotation measurements. 1. Hold the antenna with the connector pointing to the floor and align the holes on the back of the antenna with the ones on the bracket provided. 2. Select set of holes for horizontal or vertical polarization as desired. 3. Insert both thumbscrews and tighten. 4. Align the stinger with the threaded mounting stud then tighten. Mounting Instructions 21

22 MOUNT ANTENNA AND BRACKET TO 4-TR 1. Attach the mounting bracket to the 4-TR by aligning the 1/4 20 connector on the bracket with the 1/4 20 bolt on the tripod. Support the antenna securely while turning the mounting bracket to tighten the connection. 2. To change polarization, support the antenna securely and remove the thumbscrews. Turn the antenna to align the holes on the mounting bracket with the desired set of holes on the back of the antenna. Re-insert the thumbscrews and tighten. Model 3117 shown mounted onto 4-TR 22 Mounting Instructions

7-TR and Mast Mounting Options Due to the size of the Model 3112, do not mount it onto a 7-TR. For a list of 7-TR boom options, see page 10. For 7-TR mounting instructions, see the 7-TR manual.

23 7-TR and Mast Mounting Options Due to the size of the Model 3112, do not mount it onto a 7-TR. For a list of 7-TR boom options, see page 10. For 7-TR mounting instructions, see the 7-TR manual. For instructions to mount a Model 3106B to a 7-TR, see page 29. The stinger on the Model 3117 and Model 3116C enables you to mount the antenna directly to an ETS-Lindgren 7-TR without additional hardware. This illustration provides an option for mounting a Double-Ridged Waveguide Horn Antenna (except Model 3106B and Model 3112) onto an ETS-Lindgren 7-TR Tripod or mast. Contact the ETS-Lindgren Sales Department for information on ordering optional mounting hardware. Mounting Instructions 23

24 2x2 Boom Mounting Options 2x2 boom refers to a typical 2-inch by 2-inch boom. Following are options for mounting a Double-Ridged Waveguide Horn Antenna onto a 2x2 boom. Contact the ETS-Lindgren Sales Department for information on ordering optional mounting hardware. 24 Mounting Instructions

5.0 Mounting a Model 3112 to the Optional Positioning System Before connecting any components or operating the Double-Ridged Waveguide Horn Antennas, follow the safety information in the ETS-Lindgren

25 5.0 Mounting a Model 3112 to the Optional Positioning System Before connecting any components or operating the Double-Ridged Waveguide Horn Antennas, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment. Failure to provide continuous support of the antenna when attaching or removing the antenna from the positioning system may result in damage and/or personal injury. The customer is responsible for providing an adequate and safe support system for the Model 3112 Double-Ridged Waveguide Horn when moving and attaching to the optional positioning system. Rear Plate Mounting Pattern The Model 3112 Double Ridged Waveguide Horn Antenna includes a series of outer holes in the rear plate that is compatible with the optional positioning system. Additionally, the mounting holes can be used to meet customer-specific mounting requirements. Mounting a Model 3112 to the Optional Positioning System 25

26 26 Mounting a Model 3112 to the Optional Positioning System

Connecting the Optional Positioning System Once the Model 3112 is securely mounted on the positioner, loosen the nuts and turn the wheel at the base of the horn support for better field uniformity.

27 Connecting the Optional Positioning System Once the Model 3112 is securely mounted on the positioner, loosen the nuts and turn the wheel at the base of the horn support for better field uniformity. This bore sights the horn 10 degrees. Input Locations Do not connect power to the positioner until the antenna is securely mounted and all connections have been made. The input panel is located on the base of the Model 3112 positioner. Plug one end of the fiber optic cable into the FIBER OPTIC INPUT connector. Plug the opposite end of the fiber optic cable into the ETS- Lindgren Model 2090 Multi- Device Controller or compatible controller. Plug the cord included first into the POWER SUPPLY outlet. Make connection with the power source only once all other connections have been made and the antenna is securely attached to the positioner. Mounting a Model 3112 to the Optional Positioning System 27

28 Air Polarization Option Plug the ends of the twin air hoses into the two AIR OUT connectors located on the interface box at the base of the custom positioning system. Plug the opposite ends of the twin hoses into the two 90 degree fittings on the air cylinder of the custom positioning system. Plug one end of the single air hose into the AIR IN connector located on the opposite side of the interface box at the base of the custom positioning system (shown in previous diagram). Plug the opposite end of the single air hose into the air supply. Once the antenna is completely secure and the connections are made, connect the power supply to the POWER SUPPLY port on the opposite side of the interface box at the base of the custom positioning system (show in previous diagram). 28 Mounting a Model 3112 to the Optional Positioning System

6.0 Mounting a Model 3106 Series Antenna to a 7-TR Before connecting any components or operating the Double-Ridged Waveguide Horn Antennas, follow the safety information in the ETS-Lindgren Product

29 6.0 Mounting a Model 3106 Series Antenna to a 7-TR Before connecting any components or operating the Double-Ridged Waveguide Horn Antennas, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment. You will need assistance from two team members to mount a Model 3106 Series antenna to the 7-TR. You must install the boom onto the 7-TR before performing these steps. For clarity, the following illustrations do not show the 7-TR. ETS-Lindgren may substitute a similar part with the same functionality for another part (for example, a wingnut for a hex nut). The following steps to mount a Model 3106B Double-Ridged Waveguide Horn Antenna onto a boom apply to all Model 3106 Series antennas. Step 1 Remove the two boom knobs from the underside of the boom. You will re-use the knobs in Step 7. Mounting a Model 3106 Series Antenna to a 7-TR 29

30 Step 2 Lift the mount adapter up and away from the boom. Step 3 Remove the wingnut to free the 1/4 20 screw from the mount adapter. You will re-use the screw in Step 6. Step 4 Remove the nuts to free the two screws from the vertical plate on the mount adapter. You will re-use the screws in Step Mounting a Model 3106 Series Antenna to a 7-TR

Step 5 On the side of the Model 3106B with the antenna connector, remove the two screws from the mount plate.

screws to provide support for the inner ridge of the antenna.

lip on the vertical part of the mount adapter and into the two holes on the antenna. Tighten to secure.

31 Step 5 On the side of the Model 3106B with the antenna connector, remove the two screws from the mount plate. Retain these two screws for future use; if you remove the Model 3106B from the 7-TR, you will need to replace these screws to provide support for the inner ridge of the antenna. Step 6 Attach mount adapter to the Model 3106B: Using the two screws removed in Step 4, insert the screws through the lip on the vertical part of the mount adapter and into the two holes on the antenna. Tighten to secure. Using the screw removed in Step 3, insert the screw through the horizontal part of the mount adapter and into the mount block on the antenna. Tighten to secure. Mounting a Model 3106 Series Antenna to a 7-TR 31

Step 7 Attach the mounted assembly to the boom: Use the two 104136 knobs removed in Step 1 to attach the

32 Step 7 Attach the mounted assembly to the boom: Use the two knobs removed in Step 1 to attach the antenna and mount adapter assembly to the boom. Tighten to secure. 32 Mounting a Model 3106 Series Antenna to a 7-TR

33 7.0 Typical Data Before placing into operation, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment. Model 3112 Typical Data 33

34 34 Typical Data

35 Model 3106B Typical Data 35

36 36 Typical Data

37 Model 3119 Typical Data 37

38 38 Typical Data

39 Typical Data 39

40 Model Typical Data

41 Typical Data 41

42 42 Typical Data

43 Model 3117 Typical Data 43

44 44 Typical Data

45 Typical Data 45

46 Model 3116C 46 Typical Data

47 Typical Data 47

48 48 Typical Data

49 Appendix A: Warranty See the Product Information Bulletin included with your shipment for the complete ETS-Lindgren warranty for your Double-ridged Waveguide Horn Antenna. DURATION OF WARRANTIES FOR DOUBLE-RIDGED WAVEGUIDE HORN ANTENNAS All product warranties, except the warranty of title, and all remedies for warranty failures are limited to two years. Product Warranted Model 3112 Model 3106B Model 3119 Model 3115 Model 3117 Model 3116C Duration of Warranty Period 2 Years 2 Years 2 Years 2 Years 2 Years 2 Years Warranty 49

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51 Appendix B: Typical Measured Radiated Patterns Model 3106B Typical Measured Radiated Patterns 51

52 52 Typical Measured Radiated Patterns

53 Typical Measured Radiated Patterns 53

54 54 Typical Measured Radiated Patterns

55 Typical Measured Radiated Patterns 55

56 Model Typical Measured Radiated Patterns

57 Typical Measured Radiated Patterns 57

58 58 Typical Measured Radiated Patterns

59 Typical Measured Radiated Patterns 59

60 60 Typical Measured Radiated Patterns

61 Typical Measured Radiated Patterns 61

62 Model Typical Measured Radiated Patterns

63 Typical Measured Radiated Patterns 63

64 64 Typical Measured Radiated Patterns

65 Typical Measured Radiated Patterns 65

66 66 Typical Measured Radiated Patterns

67 Typical Measured Radiated Patterns 67

68 Model Typical Measured Radiated Patterns

69 Typical Measured Radiated Patterns 69

70 70 Typical Measured Radiated Patterns

71 Typical Measured Radiated Patterns 71

72 72 Typical Measured Radiated Patterns

73 Typical Measured Radiated Patterns 73

74 74 Typical Measured Radiated Patterns

75 Typical Measured Radiated Patterns 75

76 76 Typical Measured Radiated Patterns

77 Typical Measured Radiated Patterns 77

78 78 Typical Measured Radiated Patterns

79 Typical Measured Radiated Patterns 79

Log Periodic Dipole Array Antenna

Model 3148B Log Periodic Dipole Array Antenna User Manual ETS-Lindgren L.P. reserves the right to make changes to any product described herein in order to improve function, design, or for any other reason.